Hinged joint for wishbone arms of independent wheel suspension



J. w. LEIGHTON 2,096,117

HINGED JO INT FO R'WISHB ONE ARMS OF INDEPENDENT WHEEL SUSPENSION Original Filed Sept. 22, 1934 0 I o I 096.11} l r v HINGED JoiNrroa' wIsnn'oNE (ARMS. or INDEPENDENT wnEs susrnusron; V

.lohniwycliffe Leighton, Fort HuronJMich;

'5 1 Applicationse t mbrm, 1934,,Serial No. 745,641- RenewedMayH1 1, 1937 l '1 Claims. (01. 281-100).

' The principal objects of invention aret'o. devise a structure which will very greatly simpli-e fy the means for pivotally supporting the inner ends of "wishbone arms used in certaintypes of independent wheel suspension structures for mo tor cars, thereby effecting' a materialsaving of cost in the-'manufactureand. providing a structure which will not be liable :to-becomevdisplaced and will ensure a free swinging support for the arms. 5 ,z ,f"

' The principal feature of the inventionlconsists in the novel manner of assembling and rigidly securing the pivot bar for'the wishbone arm upon the vehicle frame, whereby a permanently'rigid structure is produced which'will eliminatediscrepancies in the alignment of the wishbone bearings, the said pivot bar being rigidly mounted on the vehicle frame, the ends .of the wishbone being pivotally supported onv suitable, bearing surfaces. I I H" In the accompanying drawing-Figure 1 is a ed in accordance 'withthis invention.

Figure 2 is an enlarged elevational view of one plan' view' of a "wishbone arm support construct-I.

' of the supporting brackets for the support rod for the wishbone arm. t

Figure 3 is an enlarged cross section through the bracket and support rod.

Figure 4 is an enlarged crosssection similar to Figure 3 illustrating a modified structure.

Figure 5 is an enlarged section taken on the line 5-5of Figure 1.

Figure 6 is a plan view of the pivot bar shown in Figure 1.

5 c Figure 7 is a sectional view through one of the ends of the wishbone arms, showing themrangement of the bushing and support rod thereport arm for individual wheel suspension is being used extensively, and numerous forms of means for connecting the widely-spaced ends of the 55 846, filed November 20th, 1933, I disclosed 8 The wishbone or V-shaped type of lower supspecial form of bar mountingfor the inner ends I of the wishbone arm'of an individualwwheel-suspension, features of which; have been incorpo rated'in divisional application N0.-'130,878, filed March 15,1937; i1 3 5 In the present application of this invention the I wishbone pivotbar I' is preferably formed of x a length of steel; rod; having rolle'df threaded ends 2. Brackets S which are preferablyv formed of 'a U-shapedstrap having out turnedmetal ends, 10

are rigidly secured to thebar l adjacent to each of the. threaded endsby 'brazing welding or otherwise as maybe found expedientythe bend rigidly secured to the frame of the vehicleprefis formed with eye ends! which 'are pre'ferably' machined with a substantially cylindrical recess whichmay or'maynot be threaded tofrecelve'the 20 bushings aj whica re provided with threaded mner surfaces to fnga'ge in bearing contact with the threaded endsjof the bar. I.)

. It willlbe understood that the pi bt jred lpis,

preferably assembled'injthewishbone arrn be- 25 fore the brackets are attached 'to said rod.': 'Thiis the bracketsmay be welded or brazed to the bar close up to the threaded ends thereof so that the threaded bearingends ofthe bars will have the maximum support, and a permanent rigid-struc 30 ture is. obtained.

In this form of structure it maybe found desirable to form one or both of the ends of thej wishbone arms with slotted or jaw members 9, the faces of the slots being spaced apart a suf-f 35.

ficient distance so that the Jaw end will slip over the threaded end of the rod. .When the wishbone is thus constructed the bar may be first secured to the frame and the wishbone assembled with the wheel support. In securing the wishbone in '40,

place the jaw ends are slipped over the threaded journal ends of the pivot rods and the bushings in are inserted from the ends and locked in the jaw ends by the locking bolts ll extending across I the open jaws.

The extreme simplicity of the structure herein described will be readily apparent, anda rigid and dependable structure is produced. f

What I claim as my invention 1. A joint, for the lower support arm of vehicle wheel suspension, comprisingabarhaving threaded bearing ends, brackets of U-shape embracing said bar and permanently connected h} thereto and having flaring ends adapted, to be rigidly secured to the vehicle frame, anda sup- I v ed ends 4 r the bp acliets 'l are 15 w m m m m m,

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